符号検定とWilcoxonの符号付き順位検定
      x = c(1.9, 0.8, 1.1, 0.1, -0.1, 4.4, 5.5, 1.6, 4.6, 3.4) > wilcox.test(x)   Wilcoxon signed rank test with continuity correction  data:  x  V = 53.5, p-value = 0.009298 alternative hypothesis: true location is not equal to 0   Warning message: In wilcox.test.default(x) :    タイがあるため、正確な p 値を計算することができ...
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